Give mobile devices extra mileage with the Powersolve SPB1501 credit card size Power Bank. The Ultra Slim (5 mm) rubberised plastic housing fits easily in the pocket, this ultra slim credit card rechargeable power bank is perfect for people on the go, extending talk and standby time of smartphones and increasing battery life of tablets. Featuring a single USB 5V 600mA output, will extend the standby or talk time of a typical mobile phone by 60% – 70%. the SPB1501 fully charges in 3-4 hours from any USB compatible charging device. Ultra slim at only 5mm, the SPB1501 fits easily into a pocket or wallet. The SPB1501 comes with a cable, and a 3 year warranty.